1 /* Header file to the Fortran front-end and runtime library
2 Copyright (C) 2007-2023 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
21 /* Flags to specify which standard/extension contains a feature.
22 Note that no features were obsoleted nor deleted in F2003.
23 Please remember to keep those definitions in sync with
25 #define GFC_STD_F2018_DEL (1<<11) /* Deleted in F2018. */
26 #define GFC_STD_F2018_OBS (1<<10) /* Obsolescent in F2018. */
27 #define GFC_STD_F2018 (1<<9) /* New in F2018. */
28 #define GFC_STD_F2008_OBS (1<<8) /* Obsolescent in F2008. */
29 #define GFC_STD_F2008 (1<<7) /* New in F2008. */
30 #define GFC_STD_LEGACY (1<<6) /* Backward compatibility. */
31 #define GFC_STD_GNU (1<<5) /* GNU Fortran extension. */
32 #define GFC_STD_F2003 (1<<4) /* New in F2003. */
33 #define GFC_STD_F95 (1<<3) /* New in F95. */
34 #define GFC_STD_F95_DEL (1<<2) /* Deleted in F95. */
35 #define GFC_STD_F95_OBS (1<<1) /* Obsolescent in F95. */
36 #define GFC_STD_F77 (1<<0) /* Included in F77, but not deleted or
37 obsolescent in later standards. */
39 /* Combinations of the above flags that specify which classes of features
40 * are allowed with a certain -std option. */
41 #define GFC_STD_OPT_F95 (GFC_STD_F77 | GFC_STD_F95 | GFC_STD_F95_OBS \
42 | GFC_STD_F2008_OBS | GFC_STD_F2018_OBS \
44 #define GFC_STD_OPT_F03 (GFC_STD_OPT_F95 | GFC_STD_F2003)
45 #define GFC_STD_OPT_F08 (GFC_STD_OPT_F03 | GFC_STD_F2008)
46 #define GFC_STD_OPT_F18 ((GFC_STD_OPT_F08 | GFC_STD_F2018) \
47 & (~GFC_STD_F2018_DEL))
49 /* Bitmasks for the various FPE that can be enabled. These need to be straight integers
50 e.g., 8 instead of (1<<3), because they will be included in Fortran source. */
51 #define GFC_FPE_INVALID 1
52 #define GFC_FPE_DENORMAL 2
53 #define GFC_FPE_ZERO 4
54 #define GFC_FPE_OVERFLOW 8
55 #define GFC_FPE_UNDERFLOW 16
56 #define GFC_FPE_INEXACT 32
58 /* Defines for floating-point rounding modes. */
59 #define GFC_FPE_DOWNWARD 1
60 #define GFC_FPE_TONEAREST 2
61 #define GFC_FPE_TOWARDZERO 3
62 #define GFC_FPE_UPWARD 4
63 #define GFC_FPE_AWAY 5
65 /* Size of the buffer required to store FPU state for any target.
66 In particular, this has to be larger than fenv_t on all glibc targets.
67 Currently, the winner is x86_64 with 32 bytes. */
68 #define GFC_FPE_STATE_BUFFER_SIZE 32
70 /* Bitmasks for the various runtime checks that can be enabled. */
71 #define GFC_RTCHECK_BOUNDS (1<<0)
72 #define GFC_RTCHECK_ARRAY_TEMPS (1<<1)
73 #define GFC_RTCHECK_RECURSION (1<<2)
74 #define GFC_RTCHECK_DO (1<<3)
75 #define GFC_RTCHECK_POINTER (1<<4)
76 #define GFC_RTCHECK_MEM (1<<5)
77 #define GFC_RTCHECK_BITS (1<<6)
78 #define GFC_RTCHECK_ALL (GFC_RTCHECK_BOUNDS | GFC_RTCHECK_ARRAY_TEMPS \
79 | GFC_RTCHECK_RECURSION | GFC_RTCHECK_DO \
80 | GFC_RTCHECK_POINTER | GFC_RTCHECK_MEM \
83 /* Special unit numbers used to convey certain conditions. Numbers -4
84 thru -9 available. NEWUNIT values start at -10. */
85 #define GFC_INTERNAL_UNIT -1 /* KIND=1 Internal Unit. */
86 #define GFC_INTERNAL_UNIT4 -2 /* KIND=4 Internal Unit. */
87 #define GFC_INVALID_UNIT -3
89 /* Possible values for the CONVERT I/O specifier. */
90 /* Keep in sync with GFC_FLAG_CONVERT_* in gcc/flag-types.h. */
93 GFC_CONVERT_NONE
= -1,
94 GFC_CONVERT_NATIVE
= 0,
98 GFC_CONVERT_R16_IEEE
= 4,
99 GFC_CONVERT_R16_IEEE_SWAP
,
100 GFC_CONVERT_R16_IEEE_BIG
,
101 GFC_CONVERT_R16_IEEE_LITTLE
,
102 GFC_CONVERT_R16_IBM
= 8,
103 GFC_CONVERT_R16_IBM_SWAP
,
104 GFC_CONVERT_R16_IBM_BIG
,
105 GFC_CONVERT_R16_IBM_LITTLE
,
110 /* Runtime errors. */
113 LIBERROR_FIRST
= -3, /* Marker for the first error. */
114 LIBERROR_EOR
= -2, /* End of record, must be negative. */
115 LIBERROR_END
= -1, /* End of file, must be negative. */
116 LIBERROR_OK
= 0, /* Indicates success, must be zero. */
117 LIBERROR_OS
= 5000, /* OS error, more info in errno. */
118 LIBERROR_OPTION_CONFLICT
,
120 LIBERROR_MISSING_OPTION
,
121 LIBERROR_ALREADY_OPEN
,
128 LIBERROR_READ_OVERFLOW
,
130 LIBERROR_INTERNAL_UNIT
,
133 LIBERROR_SHORT_RECORD
,
134 LIBERROR_CORRUPT_FILE
,
135 LIBERROR_INQUIRE_INTERNAL_UNIT
, /* Must be different from STAT_STOPPED_IMAGE. */
136 LIBERROR_BAD_WAIT_ID
,
138 LIBERROR_LAST
/* Not a real error, the last error # + 1. */
140 libgfortran_error_codes
;
142 /* Must kept in sync with libgfortran/caf/libcaf.h. */
145 GFC_STAT_UNLOCKED
= 0,
147 GFC_STAT_LOCKED_OTHER_IMAGE
,
148 GFC_STAT_STOPPED_IMAGE
= 6000, /* See LIBERROR_INQUIRE_INTERNAL_UNIT above. */
149 GFC_STAT_FAILED_IMAGE
= 6001
151 libgfortran_stat_codes
;
155 GFC_CAF_ATOMIC_ADD
= 1,
159 } libcaf_atomic_codes
;
163 #define GFC_CAF_BYREF (1<<0)
164 #define GFC_CAF_HIDDENLEN (1<<1)
165 #define GFC_CAF_ARG_VALUE (1<<2)
166 #define GFC_CAF_ARG_DESC (1<<3)
169 /* Default unit number for preconnected standard input and output. */
170 #define GFC_STDIN_UNIT_NUMBER 5
171 #define GFC_STDOUT_UNIT_NUMBER 6
172 #define GFC_STDERR_UNIT_NUMBER 0
174 /* F2003 onward. For std < F2003, error caught in array.cc(gfc_match_array_ref). */
175 #define GFC_MAX_DIMENSIONS 15
177 #define GFC_DTYPE_RANK_MASK 0x0F
178 #define GFC_DTYPE_TYPE_SHIFT 4
179 #define GFC_DTYPE_TYPE_MASK 0x70
180 #define GFC_DTYPE_SIZE_SHIFT 7
182 /* Basic types. BT_VOID is used by ISO C Binding so funcs like c_f_pointer
183 can take any arg with the pointer attribute as a param. These are also
184 used in the run-time library for IO. */
186 { BT_UNKNOWN
= 0, BT_INTEGER
, BT_LOGICAL
, BT_REAL
, BT_COMPLEX
,
187 BT_DERIVED
, BT_CHARACTER
, BT_CLASS
, BT_PROCEDURE
, BT_HOLLERITH
, BT_VOID
,
188 BT_ASSUMED
, BT_UNION
, BT_BOZ
192 /* Enumeration of the possible floating-point types. These values
193 correspond to the hidden arguments of the IEEE_CLASS_TYPE
194 derived-type of IEEE_ARITHMETIC. */
197 IEEE_OTHER_VALUE
= 0,
201 IEEE_NEGATIVE_NORMAL
,
202 IEEE_NEGATIVE_DENORMAL
,
203 IEEE_NEGATIVE_SUBNORMAL
= IEEE_NEGATIVE_DENORMAL
,
206 IEEE_POSITIVE_DENORMAL
,
207 IEEE_POSITIVE_SUBNORMAL
= IEEE_POSITIVE_DENORMAL
,
208 IEEE_POSITIVE_NORMAL
,